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                           IBM ECA
              Engineering Change Announcement

Parts removed from this machine and returned to IBM must be genuine,
                      unaltered IBM Parts

         IBM World Trade Corporation, CE Department Germany
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 EC NUMBER         :  ECC12626     DATE             : 89-01-19
 MANDATORY         :  N
 AUTOMATIC SHIPMENT:  N            SERVICE CODE     : 33
 PARTS SOURCE      :  EMO          AVAILABILITY DATE: 89/01

 ABSTRACT:  EC.C12626  FBM.38F4773
                                                                                
 PURPOSE:                                                                       
 THIS ECA IS RELEASED FOR TAIWAN USE ONLY.                                      
                                                                                

 Type            Machines Affected                              
 Mod. With       and/or Feature/Device     B/M to be  Serv Syst 
 Stg. B/M        Description               Installed  Hour Hour 

 Plant 99                                                       

 5541 B/MBASIC   9956853 THRU 9973797      B/M38F4773 01.0 01.0 
 JC8  B/MBASIC   9957491 THRU 9973557      B/M38F4773 01.0 01.0 
 KC8                                                            

                                                                                
 PHYSICAL CHECK: NONE                                                           
                                                                                
 PREREQUISITES: NONE                                                            
                                                                                
 COMPANION: NONE                                                                
                                                                                
 CONCURRENT: NONE                                                               
                                                                                
 DETAIL:                                                                        
 IF YOU EXPERIENCE DATA CHECK,DEFECTIVE SECTORS OR                              
 FORMAT ERROR ON HDD IN AFFECTED MACHINE SERIAL RANGE                           
 ESPECIALLY IN HIGH HUMIDITY ENVIRONMENT,INSTALL FBM 38F4773                    
 WHICH IS TO BE REPLACED THE HDD.                                               
                                                                                
 NOTES:                                                                         
 THE FBM IS AVAILABLE FOR ONE YEAR.
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